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Finding the Fourth Proportional to 488,085.57, 673,210.86 and 447,929.01

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Solution

The fourth proportional to 488,085.57, 673,210.86 and 447,929.01 is: 617,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,085.57 : 673,210.86 = 447,929.01 : x
  2. Step 2: Convert to fraction form
    488,085.57/673,210.86 = 447,929.01/x
  3. Step 3: Cross multiply
    488,085.57x = 673,210.86 × 447,929.01
  4. Step 4: Simplify right side
    488,085.57x = 301,550,674,041.05
  5. Step 5: Solve for x
    x = 301,550,674,041.05/488,085.57
  6. Step 6: Final answer
    x = 617,823.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.